February 21, 2019

Saturn's rings are younger than the planet itself

21 January 2019, 11:29 | Edward Lowe

Saturn’s rings haven’t always been there

Saturn Spent Billions of Years Without Its Rings

These internal oscillations cause the density at any particular place within the planet to fluctuate, which makes the gravitational field outside the planet oscillate at the same frequencies. The rings detect those movements in the field, according to the research.

Steve Miller, from University College London, U.K., said the findings reinforce the idea that we are living in "lucky times" by existing at the same time as the rings. "At specific locations in the rings these oscillations catch ring particles at just the right time in their orbits to gradually build up energy, and that energy gets carried away as an observable wave". There has always been a debate about the age of Saturn's rings. That, in fact, allowed him to track the movements of Saturn's interiors, and its rotation.

They had the remote-sensing measurements from NASA's Cassini and both of Voyager spacecraft.

These challenges left scientists with rough estimates falling between 10 hours, 36 minutes and 10 hours, 48 minutes - not particularly satisfying.

Prince Philip uninjured after vehicle crash; Queen's husband is 97
He added that after getting free of the auto , Philip went "and asked if everyone was else was all right". He then pulled him out, saying he was not sure whether it was through the windshield or the sun roof.

Scientists can also typically use the tilt of a planet's magnetic field to measure its day length. The magnetic axis of Jupiter, just like Earth's, is not aligned with its rotational axis. So it swings around as the planet rotates, enabling scientists to measure a periodic signal in radio waves to get the rotation rate. Imagine a set of nested cylinders, rotating at different speeds. Saturn is also unusual in having its magnetic axis almost perfectly aligned with its rotational axis.

With Saturn clocking in at around 4.5 billion years old, it means the giant planet may have been without its distinctive halo for much of its life.

The findings from Cassini's Radio Science Subsystem have also answered one other long-standing question about Saturn: the age of its rings. And it's a really solid result. "The rings held the answer".

Scientists identified a reflective feature near Titan's north pole on an image taken June 7, 2016, by Cassini's near-infrared instrument, the Visual and Infrared Mapping Spectrometer. This research was supported by NASA and the University of California. This orbital configuration allowed the disentanglement of the tiny acceleration of the rings from the large acceleration due to Saturn.

New England Patriots: 5 key offensive players key vs. Kansas City Chiefs
After the Super Bowl, the Boston Herald ran a story that said the Patriots secretly filmed the Rams' walk-through before the game. The over is 5-0 in the Chiefs' last five games after accumulating more than 350 total yards in their previous game.

Before the Cassini mission, it was impossible to distinguish the gravitational effect of the rings from the main body of the planet.

The global Cassini spacecraft has captured an image that shows the rainfall on the north pole of Titan, the largest of Saturn's moons. This observation may help scientists gain a more complete understanding of Titan's seasons.

In September 2017, as Cassini conducted its final flybys and plunged into Saturn's atmosphere, the probe's trajectory was influenced by the gravitational pull of Saturn's rings.

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency (ESA) and the Italian Space Agency. Image credit: NASA / JPL-Caltech. The radio science instrument was built by JPL and the Italian Space Agency, working with team members from the USA and Italy.

Lebanon urges return of refugees to Syria
Hezbollah, which fights alongside Assad, and its political allies including Aoun have urged rapprochement with Damascus. Lebanon is home to some 1 million Syrian refugees, a quarter of the country's population.

"Perhaps a big collision formed the rings around the age of the dinosaurs, but for me, the real surprise was the interior structure", Iess told Ryan F. Mandelbaum at Gizmodo.

Other News

Trending Now

Conditions worsen as winter storm strengthens; Snow still on the way
New York City: A period of moderate snow is likely near the onset of the storm Saturday afternoon into the evening. Forecasters at one point said that conditions in New England "could approach blizzard criteria".

Jurgen Klopp: Liverpool boss hails important 60-point milestone
After being down 1-0 at the halftime break, both teams combined binned a staggering six goals in the second half. Liverpool boss Jurgen Klopp issues instructions to substitute Rafa Camacho.

Aussie cricket fan Barty bowls into #AUSOpen fourth round
He also did it in the third round of the previous Grand Slam tournament - against Alex de Minaur at the U.S. He served out the match in the next game, winning when Basilashvili hit a forehand into the net.

Zverev destroys racquet as he capitulates against Raonic
In her effort to reach the quarterfinals, Kerber lost 6-0, 6-2 in a match that lasted less than an hour. "I only look forward". He was warned for racket abuse after the display, which came with the German trailing 6-1, 4-1 against Milos Raonic .

Alec Baldwin, Pete Davidson Lead ‘Deal or No Deal: Government Shutdown Edition’
He then offered Baldwin's Trump the briefcase containing Congress' deal which Trump rejected. "Then guess what. You're not flying to Afghanistan", Baldwin's Trump shot back.

Wizards Beat Knicks on Goaltending Call
They actually got one, but a missed three-pointer gave the Wizards the ball back with roughly three seconds remaining. It then led by as many as 16 in the third quarter before Washington began to rally.

Extreme Cold Warning issued for Waterloo Region
According to the NWS, wind chill values in Bemidji, Brainerd and Grand Rapids could dip to 46 degrees below zero Thursday night. The wind chills will drop between 0 and 5 below zero in the Roanoke Valley.

Svitolina, Osaka to meet in Australian Open quarter-finals
The eight-time Australian Open champion Williams was playing top-ranked Simona Halep later Monday in the fourth round. Osaka will play No. 6 seed Elina Svitolina in the quarter-finals on Wednesday.

Google Pixel 3 Lite leaked in hands-on video review
Other specs include an Areno 615 GPU , 4GB of RAM , 32GB of internal storage, and a reasonably beefy 2915mAh battery . A fingerprint scanner and a single camera which lacks autofocus sensor are present on the rear shell of the device.

Samsung Galaxy S10 leak shows punch-hole camera, triple-camera setup
This suggests that it could be possible that the four rear camera setup S10 phone could actually be the 5G phone from Samsung. The Galaxy S10 train might not stop there.